It seems that if I try to use the Quick Battle option, and the US Army using either MIX or ARMOR I get a CTD as soon as I select a map and press OK. This happens when I have auto select for the US Army forces. Also if I try to do player select for the armor forces of the USA I get to the selection screen but if I press "suggested" I get an immediate CTD.
None of the other nationalities seem to have an issue that I've seen so far, it seems to be limited to US ARMY, ARMOR or MIX, FRANCE and the QB automatic or Suggested forces screen.
I removed ALL mods and it doesn't seem to make a difference.
Version 3.12